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Finding the Fourth Proportional to 630,802.40, 870,527.94 and 344,337.80

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Solution

The fourth proportional to 630,802.40, 870,527.94 and 344,337.80 is: 475,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,802.40 : 870,527.94 = 344,337.80 : x
  2. Step 2: Convert to fraction form
    630,802.40/870,527.94 = 344,337.80/x
  3. Step 3: Cross multiply
    630,802.40x = 870,527.94 × 344,337.80
  4. Step 4: Simplify right side
    630,802.40x = 299,755,675,698.13
  5. Step 5: Solve for x
    x = 299,755,675,698.13/630,802.40
  6. Step 6: Final answer
    x = 475,197.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.